§ 158.153. Height regulations.

(A)

No building or structure shall have a greater number of stories, nor have an aggregate height of a greater number of feet than is permitted in section 158.145 of the Longboat Key Zoning Code for the zoning district in which the building or structure is located, except as noted in subsection (C) below.

(B)

No single-family residential construction on properties located within the R-4SF and R-6SF zoning districts shall exceed the maximum height (stories/feet) limitations as provided in the Longboat Key Zoning Code.

(C)

No exceptions to the height regulations shall be permitted except as authorized by section 158.125, Schedule of use regulations, and as specifically provided for below:

(1)

One television or dish antenna per principal structure.

(2)

Enclosed elevator shafts and vestibules, enclosed stairwells and landings, and enclosed mechanical equipment areas may be allowed by special exception, as follows:

(a)

For structures other than single-family, enclosed elevator shafts and vestibules, enclosed stairwells and landings, and enclosed mechanical equipment areas may be allowed by special exception by the planning and zoning board and shall cumulatively not exceed 15 percent of the roof area as measured from a horizontal plane and shall not exceed the height regulations by more than ten feet of the zoning district in which it is located; however, their location and visibility from adjoining streets or properties and those properties directly across a public right-of-way or public canal, shall be the subject of special exception review considerations. Parapet walls shall also be permitted as an exception to the height regulations where such wall is required pursuant to the Florida Building Code in conjunction with an enclosed stairwell.

(b)

For single-family structures other than those located within R-4SF or R-6SF, an enclosed elevator shaft and vestibule or enclosed stairwell and landing, and enclosed mechanical equipment area may be allowed by special exception by the planning and zoning board and shall not exceed a combined footprint of 120 square feet and shall be the minimum height necessary to accommodate the specified features, not to exceed the height regulations by more than ten feet of the zoning district in which it is located; however, their location and visibility from adjoining streets or properties and those properties directly across a public right-of-way, private street, or canal, shall be the subject of applicable special exception considerations. If an elevator is utilized, the required secondary egress must comply with the maximum height for the zoning district in which it is located and shall not be allowed additional height under this section. The square footage footprint for an elevator shaft and vestibule, enclosed stairwell and landing, and enclosed mechanical area shall be the minimum area required to comply with Florida Building Code. Enclosed stairwells allowed additional height under this section shall be located so as to utilize a single run of stairs, rather than a double run. A parapet wall required pursuant to the Florida Building Code in conjunction with an enclosed stairwell shall also be permitted as an exception to the height regulations. Otherwise, parapet walls or protective fencing around rooftop decks shall not exceed the maximum height of the zoning district in which they are located.

(3)

A church spire or tower may exceed the height regulations of the district within which it is located.

(4)

No sign, nameplate, display or advertising device of any kind shall be inscribed on or attached to any antenna, tower or other structure which extends above the roof of the principal structure or height regulations, except that religious symbols or identification emblems of religious orders shall be exempt from this restriction.

(5)

A planned unit development shall conform to the height regulations of the district within which it is located.

(6)

To allow for design flexibility for buildings in site plan review under sections 158.095 through 158.103, the planning and zoning board may recommend and the town commission may grant an increase in the maximum number of stories allowed, so long as the building height does not exceed the maximum height allowed in the underlying zoning district.

(D)

Single-family residences are also subject to daylight plane requirements as follows:

(See Exhibit A below)

(E)

The daylight plane requirements of subsection (C) above shall not apply to:

(1)

Chimneys;

(2)

Roof overhangs up to three feet;

(3)

Dormer(s) which do not exceed a combined 12 feet in length per side of the residence or 25 percent of the length of the side of the dwelling upon which the dormers are located, excluding roof overhang, whichever is less;

(4)

One television antenna or dish antenna measuring less than three feet in diameter;

(5)

Side lot lines on residential property which borders property which is zoned nonresidential;

(6)

Single-family homes located within a planned unit development; however, the daylight plane requirement shall apply to all remodeling, additions, renovations and alterations of the single-family home as well as to construction after voluntary demolition of all or part of the original single-family structure.

(Ord. 90-06, passed 3-19-90; Amd. Ord. 97-09, passed 6-2-97; Ord. 2008-29, § 5, passed 1-5-09; Ord. 2017-02, passed 1-8-18)

Exhibit A. Buildings are subject to the daylight plane angle as follows:

Lot Width (feet)	Daylight Plane Angle (degrees)		Lot Width (feet)	Daylight Plane Angle (degrees)		Lot Width (feet)	Daylight Plane Angle (degrees)		Lot Width (feet)	Daylight Plane Angle (degrees)		Lot Width (feet)	Daylight Plane Angle (degrees)
50 or less	65		60	62		70	59		80	56		90	53
51	65		61	62		71	59		81	56		91	53
52	64		62	61		72	58		82	55		92	52
53	64		63	61		73	58		83	55		93	52
54	64		64	61		74	58		84	55		94	52
55	64		65	61		75	58		85	55		95	52
56	63		66	60		76	57		86	54		96	51
57	63		67	60		77	57		87	54		97	51
58	63		68	60		78	57		88	54		98	51
59	62		69	59		79	56		89	53		99	50
												100 or more	50

 

Note: Lot width as defined by the Zoning Code shall be rounded to the nearest whole number.